Alternator



FIG. 1 is a front, top, left-side perspective view of an alternator showing our new design;

FIG. 2 is a left-side elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a front elevational view thereof;

FIG. 6 is a right-side elevational view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines depict environmental subject matter only and form no part of the claimed design. 

CLAIM The ornamental design for an alternator, as shown and described. 